Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Chronic stable angina clinical subset- mixed angina pectoris
Introduction
Overview
Overview
Mixed or variable threshold angina pectoris is a syndrome in which there is substantial variation in the magnitude of physical activity that induces anginal chest pain.
Pathophysiology
Pathophysiology
Dynamic vasoconstriction which is superimposed on fixed atherosclerotic coronary artery obstruction has been postulated as the underlying pathophysiologic mechanism for the changes in exercise threshold in mixed angina pectoris.
Diagnosis
Diagnosis
Symptoms
- The essential clinical feature of mixed angina is a substantial variation in the degree of physical activity that induces angina.
- This group of patients may also experience nocturnal angina on certain occasions.
- Anginal episodes may also occur upon exposure to cold, during periods of emotional stress, or after meals.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Cafer Zorkun, M.D., Ph.D. [2]